Mercurial > hg > octave-lojdl > gnulib-hg
annotate m4/strftime.m4 @ 2029:aebedfa1a43b
(_jm_STRFTIME_PREREQS): Use 3-arg form of AC_DEFINE for HAVE_TM_GMTOFF.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Fri, 10 Dec 1999 14:35:38 +0000 |
| parents | c34e888e9573 |
| children | 188eccfa9df0 |
| rev | line source |
|---|---|
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Add checks for most of the cpp macros tested in GNU's strftime.c.
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parents:
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1 #serial 7 |
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| 1117 | 3 dnl This macro is intended to be used solely in this file. |
| 4 dnl These are the prerequisite macros for GNU's strftime.c replacement. | |
| 5 AC_DEFUN(_jm_STRFTIME_PREREQS, | |
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6 [ |
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7 dnl strftime.c uses localtime_r if it exists. Check for it. |
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8 AC_CHECK_FUNCS(localtime_r) |
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9 |
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10 AC_CHECK_HEADERS(limits.h) |
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11 AC_CHECK_FUNCS(bcopy tzset mempcpy memcpy memset) |
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12 |
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13 # This defines (or not) HAVE_TZNAME and HAVE_TM_ZONE. |
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14 AC_STRUCT_TIMEZONE |
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15 |
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16 AC_CHECK_FUNCS(mblen mbrlen) |
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17 |
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18 AC_CHECK_MEMBER(struct tm.tm_gmtoff, |
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19 [AC_DEFINE(HAVE_TM_GMTOFF, 1, |
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20 [Define if struct tm has the tm_gmtoff member.])], |
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21 , |
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22 dnl FIXME: having to put the closing square bracket on the |
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23 dnl FIXME: next line is a gross kludge to work around an |
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parents:
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24 dnl FIXME: infelicity in how the new autoconf works. |
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25 dnl FIXME: This should be fixed pretty soon. |
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26 [#include <time.h> |
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27 ]) |
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28 ]) |
| 820 | 29 |
| 1117 | 30 dnl Determine if the strftime function has all the features of the GNU one. |
| 31 dnl | |
| 32 dnl From Jim Meyering. | |
| 33 dnl | |
| 820 | 34 AC_DEFUN(jm_FUNC_GNU_STRFTIME, |
| 35 [AC_REQUIRE([AC_HEADER_TIME])dnl | |
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36 |
| 1117 | 37 _jm_STRFTIME_PREREQS |
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38 |
| 820 | 39 AC_REQUIRE([AC_C_CONST])dnl |
| 40 AC_REQUIRE([AC_HEADER_STDC])dnl | |
| 41 AC_CHECK_HEADERS(sys/time.h) | |
| 42 AC_CACHE_CHECK([for working GNU strftime], jm_cv_func_working_gnu_strftime, | |
| 43 [AC_TRY_RUN( | |
| 44 changequote(<<, >>)dnl | |
| 45 << /* Ulrich Drepper provided parts of the test program. */ | |
| 46 #if STDC_HEADERS | |
| 47 # include <stdlib.h> | |
| 48 #endif | |
| 49 | |
| 50 #if TIME_WITH_SYS_TIME | |
| 51 # include <sys/time.h> | |
| 52 # include <time.h> | |
| 53 #else | |
| 54 # if HAVE_SYS_TIME_H | |
| 55 # include <sys/time.h> | |
| 56 # else | |
| 57 # include <time.h> | |
| 58 # endif | |
| 59 #endif | |
| 60 | |
| 61 static int | |
| 62 compare (const char *fmt, const struct tm *tm, const char *expected) | |
| 63 { | |
| 64 char buf[99]; | |
| 65 strftime (buf, 99, fmt, tm); | |
| 66 if (strcmp (buf, expected)) | |
| 67 { | |
| 68 #ifdef SHOW_FAILURES | |
| 69 printf ("fmt: \"%s\", expected \"%s\", got \"%s\"\n", | |
| 70 fmt, expected, buf); | |
| 71 #endif | |
| 72 return 1; | |
| 73 } | |
| 74 return 0; | |
| 75 } | |
| 76 | |
| 77 int | |
| 78 main () | |
| 79 { | |
| 80 int n_fail = 0; | |
| 81 struct tm *tm; | |
| 82 time_t t = 738367; /* Fri Jan 9 13:06:07 1970 */ | |
| 83 tm = gmtime (&t); | |
| 84 | |
| 85 /* This is necessary to make strftime give consistent zone strings and | |
| 86 e.g., seconds since the epoch (%s). */ | |
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(main): Use TZ=GMT0, not TZ=GMT, since only GMT0 is specified by Posix.1.
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87 putenv ("TZ=GMT0"); |
| 820 | 88 |
| 89 #undef CMP | |
| 90 #define CMP(Fmt, Expected) n_fail += compare ((Fmt), tm, (Expected)) | |
| 91 | |
| 92 CMP ("%-m", "1"); /* GNU */ | |
| 93 CMP ("%A", "Friday"); | |
| 94 CMP ("%^A", "FRIDAY"); /* The ^ is a GNU extension. */ | |
| 95 CMP ("%B", "January"); | |
| 96 CMP ("%^B", "JANUARY"); | |
| 97 CMP ("%C", "19"); /* POSIX.2 */ | |
| 98 CMP ("%D", "01/09/70"); /* POSIX.2 */ | |
| 1117 | 99 CMP ("%F", "1970-01-09"); |
| 820 | 100 CMP ("%G", "1970"); /* GNU */ |
| 101 CMP ("%H", "13"); | |
| 102 CMP ("%I", "01"); | |
| 103 CMP ("%M", "06"); | |
| 104 CMP ("%M", "06"); | |
| 105 CMP ("%R", "13:06"); /* POSIX.2 */ | |
| 106 CMP ("%S", "07"); | |
| 107 CMP ("%T", "13:06:07"); /* POSIX.2 */ | |
| 108 CMP ("%U", "01"); | |
| 109 CMP ("%V", "02"); | |
| 110 CMP ("%W", "01"); | |
| 111 CMP ("%X", "13:06:07"); | |
| 112 CMP ("%Y", "1970"); | |
| 113 CMP ("%Z", "GMT"); | |
| 114 CMP ("%_m", " 1"); /* GNU */ | |
| 115 CMP ("%a", "Fri"); | |
| 116 CMP ("%^a", "FRI"); | |
| 117 CMP ("%b", "Jan"); | |
| 118 CMP ("%^b", "JAN"); | |
| 119 CMP ("%c", "Fri Jan 9 13:06:07 1970"); | |
| 120 CMP ("%^c", "FRI JAN 9 13:06:07 1970"); | |
| 121 CMP ("%d", "09"); | |
| 122 CMP ("%e", " 9"); /* POSIX.2 */ | |
| 123 CMP ("%g", "70"); /* GNU */ | |
| 124 CMP ("%h", "Jan"); /* POSIX.2 */ | |
| 125 CMP ("%^h", "JAN"); | |
| 126 CMP ("%j", "009"); | |
| 127 CMP ("%k", "13"); /* GNU */ | |
| 128 CMP ("%l", " 1"); /* GNU */ | |
| 129 CMP ("%m", "01"); | |
| 130 CMP ("%n", "\n"); /* POSIX.2 */ | |
| 131 CMP ("%p", "PM"); | |
| 132 CMP ("%r", "01:06:07 PM"); /* POSIX.2 */ | |
| 133 CMP ("%s", "738367"); /* GNU */ | |
| 134 CMP ("%t", "\t"); /* POSIX.2 */ | |
| 135 CMP ("%u", "5"); /* POSIX.2 */ | |
| 136 CMP ("%w", "5"); | |
| 137 CMP ("%x", "01/09/70"); | |
| 138 CMP ("%y", "70"); | |
| 139 CMP ("%z", "+0000"); /* GNU */ | |
| 140 | |
| 141 exit (n_fail ? 1 : 0); | |
| 142 } | |
| 143 >>, | |
| 144 changequote([, ])dnl | |
| 145 jm_cv_func_working_gnu_strftime=yes, | |
| 146 jm_cv_func_working_gnu_strftime=no, | |
| 147 dnl When crosscompiling, assume strftime is missing or broken. | |
| 148 jm_cv_func_working_gnu_strftime=no) | |
| 149 ]) | |
| 150 if test $jm_cv_func_working_gnu_strftime = no; then | |
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151 AC_SUBST(LIBOBJS) |
| 1702 | 152 LIBOBJS="$LIBOBJS strftime.$ac_objext" |
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153 AC_DEFINE_UNQUOTED(strftime, gnu_strftime, |
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154 [Define to gnu_strftime if the replacement function should be used.]) |
| 820 | 155 fi |
| 156 ]) | |
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157 |
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158 AC_DEFUN(jm_FUNC_STRFTIME, |
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159 [ |
| 1117 | 160 _jm_STRFTIME_PREREQS |
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161 AC_REPLACE_FUNCS(strftime) |
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162 ]) |